<template>
  <van-pull-refresh v-model="refreshing" @refresh="onRefresh">
    <van-list
      v-model="loading"
      :finished="finished"
      finished-text="没有更多了"
      @load="onLoad"
    >
      <slot name="item"></slot>
    </van-list>
  </van-pull-refresh>
</template>

<script>
export default {
  data() {
    return {
      loading: false,
      finished: false,
      refreshing: false,
    };
  },
  props:{
      total:{
          type:Number,
          default:0,
      },
      listLen:{
          type:Number,
          default:0
      }
  },
  methods: {
    onLoad() {
        if (this.refreshing) {
          this.$emit('refreshList')  //刷新列表数据
          this.refreshing = false;
        }
        for (let i = 0; i < 10; i++) {
          this.list.push(this.list.length + 1);
        }
        this.$emit('onLoad') //加载第一次数据或更多数据时触发的事件
        this.loading = false;
        if (this.listLen >= this.total) {
          this.finished = true;
        }
    
    },
    onRefresh() {
      // 清空列表数据
      this.finished = false;

      // 重新加载数据
      // 将 loading 设置为 true，表示处于加载状态
      this.loading = true;
      this.onLoad();
    },
  },
};
</script>

<style>
</style>